Effect of the addition of amorphous calcium phosphate (ACP) over the physicochemical properties of experimental composites

• Grant number: 12/25253-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: May 01, 2013
• End date: April 30, 2016
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Roberto Ruggiero Braga
• Grantee: Marina Damasceno e Souza de Carvalho Chiari
• Host Institution: Faculdade de Odontologia (FO). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

The aim of this study is to evaluate the mechanical properties, degree of conversion, volumetric shrinkage, and of experimental composites amorphous calcium phosphate (ACP), associated or not to different quantities of inorganic filler. It will be evaluated the effects of adding 40% (by weight) of amorphous calcium phosphate in composites containing different amounts of barium glass on the degree of conversion (FTIR spectroscopy), volumetric shrinkage (Helium pycnometer), biaxial flexure strength, and elastic modulus. The bioactivity of these materials will also be evaluated. Data will be submitted to analysis of variance (ANOVA) and a Tukey's posthoc test (p<0.05%). (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CHIARI, MARINA D. S.; RODRIGUES, MARCELA C.; XAVIER, TATHY A.; DE SOUZA, EUGEN M. N.; ARANA-CHAVEZ, VICTOR E.; BRAGA, ROBERTO R.. Mechanical properties and ion release from bioactive restorative composites containing glass fillers and calcium phosphate nano-structured particles. Dental Materials, v. 31, n. 6, p. 726-733, JUN 2015. (12/25253-6, 12/04532-4)

RODRIGUES, MARCELA C.; CHIARI, MARINA D. S.; ALANIA, YVETTE; NATALE, LIVIA C.; ARANA-CHAVEZ, VICTOR E.; MEIER, MARCIA M.; FADEL, VICTORIA S.; VICHI, FLAVIO M.; HEWER, THIAGO L. R.; BRAGA, ROBERTO R.. Ion-releasing dental restorative composites containing functionalized brushite nanoparticles for improved mechanical strength. Dental Materials, v. 34, n. 5, p. 746-755, MAY 2018. (12/25253-6)

ALANIA, YVETTE; NATALE, LIVIA C.; NESADAL, DOUGLAS; VILELA, HANDIALLY; MAGALHAES, ANA C.; BRAGA, ROBERTO R.. In vitro remineralization of artificial enamel caries with resin composites containing calcium phosphate particles. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, v. 107, n. 5, p. 1542-1550, JUL 2019. (12/25253-6, 09/53849-8)

ALANIA, YVETTE; CHIARI, MARINA D. S.; RODRIGUES, MARCELA C.; ARANA-CHAVEZ, VICTOR E.; BRESSIANI, ANA HELENA A.; VICHI, FLAVIO M.; BRAGA, ROBERTO R.. Bioactive composites containing TEGDMA-functionalized calcium phosphate particles: Degree of conversion, fracture strength and ion release evaluation. Dental Materials, v. 32, n. 12, p. E374-E381, DEC 2016. (12/25253-6)